TY - JOUR
T1 - Permeation of oxygen/nitrogen in cobalt-chelated copoly(EDTA-MMA-BA) membranes
AU - Wang, Cheng Chien
AU - Chen, Chuh Yean
AU - Huang, Chao Cheng
AU - Chen, Chuh Yung
AU - Kuo, Jen Feng
N1 - Funding Information:
The authors wish to think the National Science Council of Republic of China for supporting this work (NSC88-2216-E006-005).
PY - 2000/8/30
Y1 - 2000/8/30
N2 - EDTA-MMA-BA copolymer was prepared by radical polymerization in aqueous solution. EDTA, which chelated cobalt ions (Co2+), at the chain end of copolymer was as an oxyphilic carrier. Different cobalt ions contents of chelated copolymer membranes were prepared and shown good oxygen permeability (P(O(2))=10x10-9cc(STP)cm/cm2scmHg (100 barrer)) and highly permselectivity (α(O2/N2)=10) of oxygen/nitrogen. The separation factor increased with the increasing of Co2+ contents in copolymer membranes. Both the permeation behaviors and the change of pressure were in good agreement with Petropoulos [J.H. Petropoulos, J. Polym. Sci. A2 8 (1970) 1797], Paul and Koros' [D.R. Paul, W.J. Koros, J. Polym. Sci.: Polym. Phys. Ed. 14 (1976) 675] modified dual-mode absorption theory. The relationship between the oxygen or nitrogen permeability and temperature follows the Arrhenius relation. The apparent diffusion activation energies of oxygen and nitrogen were estimated to be 7.4-11.4 and 12kcal/mol, respectively. Copyright (C) 2000 Elsevier Science B.V.
AB - EDTA-MMA-BA copolymer was prepared by radical polymerization in aqueous solution. EDTA, which chelated cobalt ions (Co2+), at the chain end of copolymer was as an oxyphilic carrier. Different cobalt ions contents of chelated copolymer membranes were prepared and shown good oxygen permeability (P(O(2))=10x10-9cc(STP)cm/cm2scmHg (100 barrer)) and highly permselectivity (α(O2/N2)=10) of oxygen/nitrogen. The separation factor increased with the increasing of Co2+ contents in copolymer membranes. Both the permeation behaviors and the change of pressure were in good agreement with Petropoulos [J.H. Petropoulos, J. Polym. Sci. A2 8 (1970) 1797], Paul and Koros' [D.R. Paul, W.J. Koros, J. Polym. Sci.: Polym. Phys. Ed. 14 (1976) 675] modified dual-mode absorption theory. The relationship between the oxygen or nitrogen permeability and temperature follows the Arrhenius relation. The apparent diffusion activation energies of oxygen and nitrogen were estimated to be 7.4-11.4 and 12kcal/mol, respectively. Copyright (C) 2000 Elsevier Science B.V.
UR - http://www.scopus.com/inward/record.url?scp=0034734374&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034734374&partnerID=8YFLogxK
U2 - 10.1016/S0376-7388(00)00475-0
DO - 10.1016/S0376-7388(00)00475-0
M3 - Article
AN - SCOPUS:0034734374
SN - 0376-7388
VL - 177
SP - 189
EP - 199
JO - Journal of Membrane Science
JF - Journal of Membrane Science
IS - 1-2
ER -